Excavating shovel



June 24, 1930. I H J BRENDLIN 1,766,053

EXCAVATING SHOVEL Filed Sept- 2'7, 1926 2 Sheets-Sheet l INVENTOR Her/726m .IBnfWd/z'w M ATTORNEYS June 24, 19 30. 'H 1 1,766,053

EXCAVAT ING SHOVEL Filed Sept. 27, 1926 2 Sheets-Sheei 2 INVENTOR mM r W Jim ATTORNEYS 7 0, sheaves lfor- 1 operation the dr I t b.

, Patented June 24; 1930 J nnmvinniir. BREND 11v; OFMNE'WHYLORK; it. it}, ssreNon'mo THE HAYWARD com-mm,

i erm y m N. Y A oonroimrioiv-or- NEW join;

- EXCAVA I'NG s ovEL' f nfiiiiicati i filed September 27, 19 s. I Serial No.-;1e7;9s4;

7 r This invention is.;an'1improvement, upon thetype of shovel'shoiwn in myPatent'No; 1 552933, of Septembenl, 1925].: In this'f'pab entwthe bucket isoperated through a draft bridle,i' an -o adjustingzbridle, "it suspending.

bridle-u and v a v co 'i=tr (')l; .bri dle connected to the suspendingbridlejand 'theidl'afll bridle, the

connection ib'etweengthe control, bridle and" the draft". bridle; being through a pair of tilting her-lbucket ,in carrying 3; v: "f, r v The present improvement comprises [a ii'iuaai'isi for; simplifying the tilt-ingfar'rangementfi'n 1 the carrying position, including a 3 5 new; lOCLLlElO IL'fO IT the tilting sheaves, wherein theyware kept awayfron lthe mate'rialwhich;

the; bucket is fhandlingj; 3nd, consequently,

are, :not liable to} become clogged the same.

dumping?:ypositions "and a; this {a greater amount of: material is= perinissible under a thewoperation'of otheridesigns-j suspending bridle With spreader-bar; a draft bridle; and; an facljustinglbridle} unning through'fthe sheavesl ofth'e reader-bar to f tandem iilah isting;

'd m e: a

icl k n, e ing ard; so *th ti'the It lt PULh Yb,, Y1? bucket assumes 'the 'oorr it pr per y 312 lle spreader-bar taken ron' the line fl5+5of Figure 2 I The,qinvent ion' furthergcomprehends the: shortening zof the suspending ibridle for the: purpose; of reducingnthe L hea'drroom neceso sary ,underthe .boon i in the, carrying and are enabled to assume dilferentjpositions i I as Will "presently; appearzi, Said; spreadn that thelatter can assumeanyposition V.

=In the drawings;

c Figure l is-a plan view jo fi-theshovel; I i i Figurey2 is a side view indig'ging position;

Figure 3.is .a similar viewybutfin carrying' positionp" i Figurel is a' side view in dumping posidemand;

Figure .5 .is a -sectional detailedvviewioitlie I o. In the 1.ajccompanying1ldrawings" illustrated the preferred embodiment of l invention, but the construction .ttherein' shovvn'is to 'be understood ias illustrative 7 only and not as defining the limits ,of-the o invention. 3'

Referring now more in cparticulart'to the e5 shovel,- hich-is substantially the same as in; a the patentabove referrd'to, said shovlabei accompanying; drawingsglet -5.fdenote'-: the;

ing closed at the bottom and rear but open atthel front and top; YDigging' toes o'rzteeth 6 are positioned at the lower frontedgefof. the bottom ofthe shovel, Whlltll front end.

- ofsaid shovelis providedwithdraft' lugs? which extend beyond the front-"edgeofi said shovel and extend rearizvardlyfor anappre- 1 Q i '7 'ciabl'e distance 1 along its sides for-the pur pose of stiffening and lending rigidity; to?

the structure. Positioned. above-said draft; lugs are upstanding ears '81 The numeral 9f; i v designates thespreader-bar;which is arc-lied I; 1 the, apexv 'thereof being :provided"withlany.a aperturez 9 r for connection withaiall-rdpe in the center, as clearly shown*in'Figurelfiy (not ishovvn The outerf ends jot, saidI ings ;l0r. for the sheaves 11 and in view%o=the j knuckleejoint shackle 'IZrthe; said sheafires bar. 9; is directly connectediuto the sides zof-the 7 ing bridle 13, the upper end thereof'being shackled to said spreader-bar as indicated at 141, while the other end is loosely'or pivot allyfconnectedto the respective sides'of the shovel, as shown 15, saidpoints of connection being rearwardly of the center'of gravity thereof (see Figure 2), Between 7 the shovel-and the'haul cable 16 is a draft .Ibridle '17 comprised of two converging members, the rear ends of said members beingpivotally' connectedv tov the forward ends of the draft lugs 7, while the forward ends of i said hauling bridle are pivotally connected to shackle 18 carried by the haul cable 16,

' As; clearlyshown' in the'drawings, I now 7 connectthe adjustable control bridlel9 to the ears 8 and passthe same over the sheaves 11,

whereupon the two-members comprising said r l -FigureW-Q f the assume"al tiltedcpositionr bridle converge for connection to the hauling bridle 17 through the medium ofthe shack a. I 'lrawings illustrates the shovel inpdigging position. It will-be observed that the adjustable control bridle 19 as'fa pulling element, thejadjustable control bridles'ar'e'held tau't, causing the shovel to The-operation of the device is as follows The--shovel 'is l'owered into: contact with the .ground by payingout the fall rope? The suspending bridle 13-, draft bridle 17, and adjustable control bridle I 19 assume the positions shown'in Figure-2 during theload- V of theshoveh Thesho'vel is thenarawn' for-xva rdlyby the pull: exerted on the haul- 111g cable 16' gtransmitted to the fshove'l throughjtheedraft'bridle 17 andthe' adjustf, able control'bridle' The extent of the digging 'angle assumed by the bucket is di rect-ly controlled by l-the adjustable 1 control bridle;:l-9', the. inclination of 'the shovel bei ingcvaried so as to regulate the depth ofcut 1 by changing its point of connection with the 'dfaft bridle through the medium of adjust ing shackles 20 Whenthe shovel has been filled, it'is hoisted hauling in the fall line,

while keepinga ten sionupon the haul cable j I E 16,; the fefl'e'ct which is "to tilt the "forward'l endof thebu'cket toprevent spilling-vof 'the load, as showninFigure' 3. Obviously it is 7 only necessary to -pa y 'out the haul cable 16 iiniorder ito slackeni the djustable-center bridle 19 and cause "the shovel-. toj assumef'the g'dumping position-shown in Figu re 4. -1

'7 'lj flvhat Luann" I Y l; a *ClGVlCG 'jOfifillQ' cl'ass described; the combination of a shoveh asuspending bridle spreader-bar, -a haul rope, aadraft bridle} fixedly and directly attached to said shovel bridle connected to said'shovel rearwardly" therefor connected to the shovel rearwar'dly provided with sheaves, a draft bridle-directly connected to saidshovel, and an ad'- justablecontrol bridle running through the sheaves of said spreader-bar and having one ,end connected to the shovel and "the other to said draft bridle said spreader bar being also arched to clear the load carried by said bucket.

2. Ina device of the class=described,the

combination of a shovel, a suspending bridle. therefor connected to theshovel rearwardly i ofthe center of gravity thereof, as r'eaderbar connected tothe suspending bridle and providedwith sheaves'having swivel housings, a draft bridle directly connected to said'shovehand an adjustable control bridle running through the sheaves of'said spreader-bar and having one end connected tothe shovel and the other to said draft bridle; i

3. Ina device of the class described, :a shovel, means for suspending itincludinga V and said haul rope and 'a control-bridle ad justably connected acljacent';'the forward portion of said draftjbridle and having op- V erative-connection with said spreader-bar wherebythe angle of inclination of 'saida shovel may be varied. 4.111" a device f the class described, a we shovel, means for suspending it including'ia spreader-bar having sheaves -with swivel housings, a haul;rope,-af draft -bridle fixedly V and directly attached to the"shovel and said haul rope, and a "control-bridle passing through the sheavesjof said spreader-bar Y and being" adj ustablej at its for-ward portion relatively to the 'cor-responding portion i of said draftbridle, whereby'the" angle of in} .clination of said shovel maybe'variedp; 5. In a device of'the classdescribed,.the'1 1 suspen'dingkbrid-le connected to saidshovel combination with a shovel, a haul rope, a

rearwardly of thelcenter of gravity thereof,

a spreader-barfconnected.to said suspending f f1 7' bridle and. adapted vfolifdirect connection with a fall I rope, said spreader-bar having sheaves with-swivel housings at its opposite ends; a draft bridledirectly connected to? sheaves of said spreader-banand'ihaving one d coni d .to e lnp jperff rwa d" p re.

r said shovel andlsa id haul-rope, and a oon-3 .l

trolrbridle adj ustably 'connected to said: draftbr'idle and running; freely through the" TGFVIn a deviceof the j combinationawith'a "shovel, 1a haul ropjeya spreader bar "adaptedfor direct connection V V with. a 3 fall 1rope -and havingi swi velled sheaves at its opposite ends, asuspendinge/ of the center ojf 'gravity thereof, and: com;

no i

posed of two members each COHIIGCtGd tOthG" ends of said spreader-bar, a draft-bridle comprising a pair'of forwardly converging membersdirectly connected to said shovel and meeting at and joined to saidhaul rope, and a control-bridle com rising two converging members having 1: eir forward ends adjustably connected to said draft-bridle; e the other ends thereof freely passing over' said 's'heaves of said spreader-bar and fixedly connected to the upper forward portions of said shovel. v I

' HERMAN J. :BRENDLIN'. d 

